An Overview of Spectrum Occupancy Models for Cognitive Radio Networks

被引：0
|
作者：
Lopez-Benitez, Miguel [1 ]
Casadevall, Fernando [1 ]
机构：
[1] Univ Politecn Cataluna, Dept Signal Theory & Commun, ES-08034 Barcelona, Spain
来源：
NETWORKING 2011 WORKSHOPS | 2011年 / 6827卷
关键词：
cognitive radio; dynamic spectrum access; spectrum characterization; spectrum occupancy modeling;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The Dynamic Spectrum Access (DSA) paradigm based on the Cognitive Radio (CR) technology has emerged as a promising solution to conciliate the existing conflicts between spectrum demand growth and current spectrum underutilization without changes to the existing legacy wireless systems. The basic underlying idea of DSA/CR is to allow unlicensed users to access in an opportunistic and non-interfering manner some licensed bands temporarily unused by the licensed users. Due to the opportunistic nature of the DSA/CR paradigm, a realistic and accurate modeling of spectrum occupancy patterns becomes essential in the domain of DSA/CR research. In this context, this paper provides an overview of the existing spectrum occupancy models recently proposed in the literature to characterize the spectrum usage patterns of licensed systems in the time, frequency and space dimensions.
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页码：32 / 41
页数：10
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